It is the lowest(cheapest) level. It is the classic airplane seat you see on TV and movies. No leg room. Can't really recline. Just look at Wikipedia and type in "Economy Class". Economy is offered on trains and ferries(ships)
The seating for the A320 for US airlines is; 2-2 for Buisness class 3-3 for Economy class Economy Class has 2 center exit rows, typically seats in the first exit row do not recline. Bathrooms are in the rear of the airplane. Avoid these seats because fliers line up back here.
485 sitter
A380It provides seating for 525 people in a typical three-class configuration or up to 853 people in all economy class configurations
The seating varies with The Arline or User There are versions for freight that have no seating to all Economy seating for operators like Ryan air. The best example is the Custom interior personal jet version with litterally any araingement.
You can get 853 in all economy seating.
The is no set seating plan for the Airbus A340-300 series. Airlines are all different about how they want to have a seating layout. One airline may want it to be a all economy and buisness, e.g: Air France, while the other airline would like it to be economy, buisness and first class, e.g: Cathy Pacific.
The economy seats are configured as 2-4-2 on both variants of A340 operated by Virgin Atlantic. www.seatguru.com has full seating plan.
3 class refers to the "classes" of seating First Class, Business Class and Economy or Coach class.
Of course it depends on the airplane and the seating configuration. But the largest commercial airliner in the world, the Airbus 380, can seat up to 853 people.
Airbus do not make an aircraft designated M83. Most of their 2-aisle wide-bodied jets use a 2-4-2 economy seating plan. The smaller 1-aisle aircraft (A320) use a 3-3 economy plan.
The seating arrangement on a Being 757 is 3-3 for Economy class, 2-2 if you are flying in Buisness class or First class.
The Air China 747 passenger jet has a seating configuration of 3 - 4 - 3 in economy class. The seating configuration in business class is 2 - 2 - 2.